[uClinux-dev] Re: 5272 network performance

From: Greg Ungerer (gerg@snapgear.com)
Date: Mon Jun 10 2002 - 19:58:19 EDT


Hi Jim,

Which direction was your data flow?

Here are my numbers, for a 5272 based board (one of our SnapGear
LITE routers), connected to an no-name PC (AMD 1.4GHz CPU running
RedHat 7.2). The is tcpblasting from the PC to the 5272 board:

TCP  6283 msec  =  13037053.6 b/s  =  1629631.7 B/s  =  1591.44 KB/s
UDP   877 msec  =  93400009.1 b/s  = 11675001.1 B/s  = 11401.37 KB/s

Regards
Greg




Henderson, Jim wrote:
> Using the following configuration:
> 
> 5272 board	uClinux kernel 2.4, running tcpblast to send 9999 packets of
> 1KB each using both TCP and UDP
> Server		Gateway 266 MHz running RedHat Linux 7.2
> 
> Our 5272 board was connected directly to the server (no hub/switch) and the
> following measurements were taken: 
> 
> TCP	9410 ms =  8704000 bps = 1088000 Bps
> UDP	5480 ms = 14944000 bps = 1868000 Bps
> 
> Note that the UDP performance suffered because the server was unable to
> accommodate the extreme UDP traffic and refused 10 of the connection
> attempts.
> 
> Does this throughput seem reasonable or should I expect higher performance?
> 
> 
> 
> 
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Greg Ungerer  --  Chief Software Wizard        EMAIL:  gerg@snapgear.com
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